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    System and Method for Controlling Resonance Frequency of Film Bulk Acoustic Resonator Devices
    1.
    发明申请
    System and Method for Controlling Resonance Frequency of Film Bulk Acoustic Resonator Devices 有权
    用于控制膜体积声谐振器器件的谐振频率的系统和方法

    公开(公告)号：US20090039981A1

    公开(公告)日：2009-02-12

    申请号：US11836538

    申请日：2007-08-09

    申请人： Hiroyuki Ito ,  Hasnain Lakdawala ,  Ashoke Ravi ,  Krishnamurthy Soumyanath

    发明人： Hiroyuki Ito ,  Hasnain Lakdawala ,  Ashoke Ravi ,  Krishnamurthy Soumyanath

    IPC分类号： H03H9/13

    CPC分类号： H03H19/004 ,  H03H9/02007 ,  H03H2009/02204

    摘要： Disclosed is a system and method for controlling a resonance frequency of a Film Bulk Acoustic Resonator (FBAR) device. The system includes at least one switching capacitor coupled to the FBAR device and a modulator. The at least one switching capacitor includes at least one capacitor and a switch configuration disposed in series with the FBAR device and the at least one capacitor, which is switch configuration capable of opening and closing connection of the at least one capacitor with the FBAR device. The modulator is coupled to the switch configuration, which generates a switching condition signal based on the manufacturing variation in the FBAR device and the environmental effects on the FBAR device. The switch configuration performs opening and closing of the connection of the at least one capacitor and the FBAR device based on the switching condition signal.

    摘要翻译： 公开了一种用于控制膜体声波谐振器（FBAR）装置的谐振频率的系统和方法。 该系统包括耦合到FBAR器件和调制器的至少一个开关电容器。 所述至少一个开关电容器包括至少一个电容器和与所述FBAR器件和所述至少一个电容器串联布置的开关配置，所述至少一个电容器是能够打开和关闭所述至少一个电容器与所述FBAR器件的连接的开关配置。 调制器耦合到开关配置，其根据FBAR器件的制造变化和对FBAR器件的环境影响产生开关条件信号。 开关配置基于开关条件信号来执行至少一个电容器和FBAR器件的连接的打开和闭合。

    System and method for controlling resonance frequency of film bulk acoustic resonator devices
    2.
    发明授权
    System and method for controlling resonance frequency of film bulk acoustic resonator devices 有权
    用于控制膜体声波谐振器装置的谐振频率的系统和方法

    公开(公告)号：US07719389B2

    公开(公告)日：2010-05-18

    申请号：US11836538

    申请日：2007-08-09

    申请人： Hiroyuki Ito ,  Hasnain Lakdawala ,  Ashoke Ravi ,  Krishnamurthy Soumyanath

    发明人： Hiroyuki Ito ,  Hasnain Lakdawala ,  Ashoke Ravi ,  Krishnamurthy Soumyanath

    IPC分类号： H03H3/04 ,  H03H9/02

    CPC分类号： H03H19/004 ,  H03H9/02007 ,  H03H2009/02204

    摘要： Disclosed is a system and method for controlling a resonance frequency of a Film Bulk Acoustic Resonator (FBAR) device. The system includes at least one switching capacitor coupled to the FBAR device and a modulator. The at least one switching capacitor includes at least one capacitor and a switch configuration disposed in series with the FBAR device and the at least one capacitor, which is switch configuration capable of opening and closing connection of the at least one capacitor with the FBAR device. The modulator is coupled to the switch configuration, which generates a switching condition signal based on the manufacturing variation in the FBAR device and the environmental effects on the FBAR device. The switch configuration performs opening and closing of the connection of the at least one capacitor and the FBAR device based on the switching condition signal.

    摘要翻译： 公开了一种用于控制膜体声波谐振器（FBAR）装置的谐振频率的系统和方法。 该系统包括耦合到FBAR器件和调制器的至少一个开关电容器。 所述至少一个开关电容器包括至少一个电容器和与所述FBAR器件和所述至少一个电容器串联布置的开关配置，所述至少一个电容器是能够打开和关闭所述至少一个电容器与所述FBAR器件的连接的开关配置。 调制器耦合到开关配置，其根据FBAR器件的制造变化和对FBAR器件的环境影响产生开关条件信号。 开关配置基于开关条件信号来执行至少一个电容器和FBAR器件的连接的打开和闭合。

    PACKAGE FOR SUPPRESSING SPURIOUS RESONANCE IN AN FBAR
    3.
    发明申请
    PACKAGE FOR SUPPRESSING SPURIOUS RESONANCE IN AN FBAR 失效
    用于抑制FBAR中的兴奋性共振的包装

    公开(公告)号：US20090115552A1

    公开(公告)日：2009-05-07

    申请号：US11936254

    申请日：2007-11-07

    申请人： Hiroyuki Ito ,  Hasnain Lakdawala

    发明人： Hiroyuki Ito ,  Hasnain Lakdawala

    IPC分类号： H03H11/44 ,  H03H9/54

    CPC分类号： H03H9/0542

    摘要： Disclosed is a package having a thin film bulk acoustic resonator (FBAR). The package may be utilized for suppressing spurious resonance occurred during operation of the FBAR. The package includes a negative impedance converter (NIC) operatively coupled to the FBAR through at least one interconnect. The at least one interconnect includes transmission lines and bonding wires. The package further includes a filter operatively coupled to the NIC. The filter exhibits a parallel resonance at a predefined frequency. The parallel resonance exhibited by the filter is converted to a series resonance by the NIC such that the series resonance of the NIC is responsible for suppressing the spurious resonance occurring during the operation of the FBAR.

    摘要翻译： 公开了具有薄膜体声波谐振器（FBAR）的封装。 该封装可用于抑制FBAR运行期间发生的杂散共振。 该封装包括通过至少一个互连可操作地耦合到FBAR的负阻抗转换器（NIC）。 至少一个互连包括传输线和接合线。 该封装还包括可操作地耦合到NIC的滤波器。 滤波器以预定的频率呈现并联谐振。 由滤波器显示的并联谐振被NIC转换成串联谐振，使得NIC的串联谐振负责抑制在FBAR的操作期间发生的寄生谐振。

    Package for suppressing spurious resonance in an FBAR
    4.
    发明授权
    Package for suppressing spurious resonance in an FBAR 失效
    用于抑制FBAR中的寄生共振的封装

    公开(公告)号：US07683741B2

    公开(公告)日：2010-03-23

    申请号：US11936254

    申请日：2007-11-07

    申请人： Hiroyuki Ito ,  Hasnain Lakdawala

    发明人： Hiroyuki Ito ,  Hasnain Lakdawala

    IPC分类号： H03H11/10 ,  H03H9/02 ,  H01L41/04 ,  H03B5/32

    CPC分类号： H03H9/0542

    摘要： Disclosed is a package having a thin film bulk acoustic resonator (FBAR). The package may be utilized for suppressing spurious resonance occurred during operation of the FBAR. The package includes a negative impedance converter (NIC) operatively coupled to the FBAR through at least one interconnect. The at least one interconnect includes transmission lines and bonding wires. The package further includes a filter operatively coupled to the NIC. The filter exhibits a parallel resonance at a predefined frequency. The parallel resonance exhibited by the filter is converted to a series resonance by the NIC such that the series resonance of the NIC is responsible for suppressing the spurious resonance occurring during the operation of the FBAR.

    摘要翻译： 公开了具有薄膜体声波谐振器（FBAR）的封装。 该封装可用于抑制FBAR运行期间发生的杂散共振。 该封装包括通过至少一个互连可操作地耦合到FBAR的负阻抗转换器（NIC）。 至少一个互连包括传输线和接合线。 该封装还包括可操作地耦合到NIC的滤波器。 滤波器以预定的频率呈现并联谐振。 由滤波器显示的并联谐振被NIC转换成串联谐振，使得NIC的串联谐振负责抑制在FBAR的操作期间发生的寄生谐振。

    Magnetic head for perpendicular magnetic recording including a main pole with a lower protrusion
    9.
    发明授权
    Magnetic head for perpendicular magnetic recording including a main pole with a lower protrusion 有权
    用于垂直磁记录的磁头，包括具有下凸起的主极

    公开(公告)号：US09336798B1

    公开(公告)日：2016-05-10

    申请号：US14567590

    申请日：2014-12-11

    申请人： Yoshitaka Sasaki ,  Kazuki Sato ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Hironori Araki ,  Yukinori Ikegawa

    发明人： Yoshitaka Sasaki ,  Kazuki Sato ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Hironori Araki ,  Yukinori Ikegawa

    IPC分类号： G11B5/187 ,  G11B5/127 ,  G11B5/17 ,  G11B5/31

    CPC分类号： G11B5/1278 ,  G11B5/02 ,  G11B5/17 ,  G11B5/187 ,  G11B5/3116 ,  G11B5/315 ,  G11B5/3163 ,  G11B5/3169

    摘要： A main pole includes a main body and a lower protrusion. The lower protrusion is located at a distance from a medium facing surface. The main body includes a front portion and a rear portion. The front portion has a first side surface and a second side surface. The lower protrusion has a third side surface and a fourth side surface. A first side shield has a first sidewall opposed to the first side surface. A second side shield has a second sidewall opposed to the second side surface. A bottom shield includes a receiving section. The receiving section has a third sidewall opposed to the third side surface, and a fourth sidewall opposed to the fourth side surface. The receiving section and the lower protrusion are formed in a self-aligned manner by using the first and second side shields.

    摘要翻译： 主杆包括主体和下突起。 下突出部位于与面向介质的表面相距一定距离处。 主体包括前部和后部。 前部具有第一侧表面和第二侧表面。 下突起具有第三侧表面和第四侧表面。 第一侧屏蔽具有与第一侧表面相对的第一侧壁。 第二侧屏蔽具有与第二侧表面相对的第二侧壁。 底部屏蔽包括接收部分。 接收部分具有与第三侧表面相对的第三侧壁和与第四侧表面相对的第四侧壁。 通过使用第一和第二侧面屏蔽件以自对准的方式形成接收部分和下部突出部。